a-ak a-ok aaaa aaab aaac aaaf aaal aaba aabb aabc aabl aabt aaca aacb aacc aacf aack aacl aaco aact aafa aafb aafc aaff aafl aaka aala aalc aall aalo aaoo aata aatc aatf aatk aatt abaa abab abac abaf abak abal abat abb- abba abbb abbo abbt abca abcb abcc abcf abcl abct abff abla ablo aboa abob abof abok abol aboo abot abta ac-t acaa acab acac acat acba acbl acca accc accf acco acct acfc acfl acft acla aclc acoa acol acot acta actc actf actl acto actt afaa afak afao afat afca afcb afcc affa affc affo afft afka afla aflc afoa afol afoo afta aftc akaa akal akao akca akka akko aklo akok akot alaa alac alak alal alao alat alb- alba albc albo alca alcc alco alfa alk- alka alkb alko all- alla alll allo aloa aloc alof alok alol aloo alot alta alto aoba aoca aola aotc aotf at-l at-t ataa atab atac atak atal atat atca atcc atcf atck atcl atco atfb atfc atka atkt atla atlo atob atoc atof atok atol atot atta atto baaa baaf baak baal baat baba babb babo bac- baca bacc back baco bact bafc baff bafo baft bak- baka bakl bako bakt bala balc balf balk ball balo balt baol bata batc batf bato batt bbbb bbfc bblb bcaa bcat bcbc bcca bccc bccl bcfc bcof bctc bfca bffl bfta bftt blaa blab blac blak blat blbt blfc blkb blob bloc blok bloo blot boab boac boak boal boat boba bobb bobo boca bock boco bofa boff boka boko bola bolk boll bolo bolt boob booc boof book bool boot bota botb boto bott btaa btaf btcc btcl btfc btla btob bttb c-bo caaa caab caac caaf caal caat caba cabf cabo cac- caca cacc cack caco cafa cafb cafc caff cafl caka cala calc calf calk call calo calt caol cat- cata catb catc catf cato catt cbac cbal cbat cbbc cbca cbcc cbcl cbct cbfb cbfc cbka cbkl cbko cblb cblc cbol cbot cbta cbtc cbtf cbtl ccaa ccab ccac ccaf ccat ccba ccbc ccca cccb cccc cccf cccl ccfa ccfc ccff ccfl ccla cclc ccob ccoc cctb cctc cctl cctt cfaa cfab cfac cfao cfbc cfbt cfca cfcb cfcf cfcl cfco cffb cfoa cfta cftc cftk cftl ckac ckat ckbc ckck ckcl ckco cklf ckoa ckob ckoc ckoo ckot cktb clab claf clat clob clof clok cloo clot cltb cltc coak coal coat coba cobb cobo coca cock coco coct cofc coff coft cok- coka coko col- cola colb colk coll colo colt coob coof cook cool coot cota cotb cotc coto cott ctab ctal ctba ctca ctcf ctfc ctfo ctol ctot ctta f--k faaa faac faba fabo faca facc fack fact fafa fafc faff fafo fako fakt fala falc falk fall falo falt fata fatc fatf fato fatt fbla fcab fcal fcat fcba fcca fccf fcot fcto ffcc ffff fftf fkab flab flac flak flao flat flcl flob floc flok floo flot fltk foaf foak foal foba fobt foca fock foco fofo fola folc folk foll folo folt foof fook fool foot fota foto fott ft-c ft-l ftfc ftlb k-lo kaaa kaab kaaf kaak kaal kaat kaba kabb kabc kabf kabo kacb kacc kacl kaco kact kafa kafc kaff kaka kakc kakk kako kakt kala kalb kalc kalf kalk kall kalo kalt kaoa kaoc kaok kaol kat- kata katb katc katf katk katl kato katt kbaa kbab kbac kbak kbal kbat kbba kbbb kbbc kbbf kbbk kbbl kbbo kbbt kbca kbcb kbck kbcl kbco kbct kbfb kbfc kbff kbfk kbfl kbfo kbft kbkb kbkf kbkk kbkl kbko kbla kblb kblf kbll kblo kblt kboa kbob kboc kbok kboo kbot kbta kbtb kbtc kbtf kbtk kbtl kbto kbtt kcaa kcab kcac kcal kcat kcba kcbc kcbf kcbk kcbl kcca kccb kccc kcck kccl kcct kcfa kcfb kcfc kcfl kcfo kcft kckc kckf kckk kckl kcko kcla kclc kclf kclk kcll kclt kcob kcof kcol kcot kcta kctb kctc kcto kfab kfac kfal kfat kfbc kfbk kfbt kfcf kfco kffa kffb kfff kffk kfka kfkb kfla kflb kflc kflf kfll kflo kflt kfok kfoo kfta kftc kftk kftt kkaa kkac kkal kkat kkba kkbb kkbl kkbo kkbt kkcb kkck kkcl kkco kkct kkft kkkk kklb kklc kklf kkll kklo kkoa kkob kkol kkoo kkot kktc kktk kktl klaa klab klac klaf klak klal klat klbb klbc klbf klbl klbt klca klcb klcc klck klcl klfa klfc klff klft klka klkc klkk klkl klko klla kllb kllc kllk kloa klob kloc klok klol kloo kltc kltf kltk klto kltt koab koac koak koal koba kobb kobc kobk kobo koca kocb kocf kock koct kofa kofc koff kofk kofo koft koka kokb kokc kokf kokk koko kola kolb kolc kolf kolk koll kolo kolt koob kooc kook kool kooo koot kota kotb kotc kotk koto kott ktaa ktak ktal ktao ktat ktba ktbb ktbc ktbl ktbt ktcc ktck ktcl ktco ktfb ktfc ktfl ktfo ktkb ktkc ktkk ktko ktkt ktla ktlb ktlf ktlk ktlo ktlt ktob ktoc ktok ktoo ktot kttc kttf kttk ktto kttt laaa laac laak laal laat laba labo laca lacc lack lacl laco lact lafb lafc laff laft laka lala lall lalo lata latc lato latt lbcc lcac lcat lcbc lcca lccc lcfc lctl lcto lfat lfca lfcc lkab lkal llao llat llcc lllc llll lloa lloc lloo loac loaf loat lob- loba lobb lobo loca locc lock loco lofa loff loft loka lokk loko lola loll lolo loob looc loof look lool loot lota lotl loto lott ltac ltbf ltbl ltcc ltfc lttc oafc oafo oall obak obal obba obbo obkb obla obok obol obot ocab ocac ocak ocal ocat ocbc occa occc occt ocfa oclc oct- octa octo ofcl off- offa offc offo ofla ofta okak okka okko okla oklo okok okol okot okta okto olac olaf olat olba olbo olca olcc olfa olka olla ollo olof olot olta ooaa ooak ooba ooff oola oolo oooo ootb otac otak otcl